public List<VirtualSwitch> GetExternalSwitches(string computerName)
{
Wmi cwmi = new Wmi(computerName, WMI_VIRTUALIZATION_NAMESPACE);
Dictionary<string, string> switches = new Dictionary<string, string>();
List<VirtualSwitch> list = new List<VirtualSwitch>();
// load external adapters
Dictionary<string, string> adapters = new Dictionary<string, string>();
ManagementObjectCollection objAdapters = cwmi.GetWmiObjects("Msvm_ExternalEthernetPort");
foreach (ManagementObject objAdapter in objAdapters)
adapters.Add((string)objAdapter["DeviceID"], "1");
// get active connections
ManagementObjectCollection objConnections = cwmi.GetWmiObjects("Msvm_ActiveConnection");
foreach (ManagementObject objConnection in objConnections)
{
// check LAN andpoint
ManagementObject objLanEndpoint = new ManagementObject(new ManagementPath((string)objConnection["Dependent"]));
string endpointName = (string)objLanEndpoint["Name"];
if (!endpointName.StartsWith("/DEVICE/"))
continue;
endpointName = endpointName.Substring(8);
if (adapters.ContainsKey(endpointName))
{
// get switch port
ManagementObject objPort = new ManagementObject(new ManagementPath((string)objConnection["Antecedent"]));
string switchId = (string)objPort["SystemName"];
if (switches.ContainsKey(switchId))
continue;
// add info about switch
ManagementObject objSwitch = cwmi.GetRelatedWmiObject(objPort, "Msvm_VirtualSwitch");
switches.Add(switchId, (string)objSwitch["ElementName"]);
}
}
foreach (string switchId in switches.Keys)
{
VirtualSwitch sw = new VirtualSwitch();
sw.SwitchId = switchId;
sw.Name = switches[switchId];
list.Add(sw);
}
return list;
}